CVE-2010-4344
KEVCRITICAL 9.8EPSS 71.7%
Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C - EPSS
- 71.71% chance of exploitation in the next 30 days, 99th percentile
- CISA KEV
- added 2022-03-25
- Published
- 2010-12-14
- Updated
- 2025-10-22
Proof-of-concept exploits (1)
Metasploit modules (1)
ExploitDB entries (2)
Security advisories
- http://secunia.com/advisories/40019
- http://secunia.com/advisories/42576
- http://secunia.com/advisories/42586
- http://secunia.com/advisories/42587
- http://secunia.com/advisories/42589
- http://www.vupen.com/english/advisories/2010/3171
- http://www.vupen.com/english/advisories/2010/3172
- http://www.vupen.com/english/advisories/2010/3181
- http://www.vupen.com/english/advisories/2010/3186
- http://www.vupen.com/english/advisories/2010/3204
- http://www.vupen.com/english/advisories/2010/3246
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html
- http://openwall.com/lists/oss-security/2010/12/10/1
- http://www.debian.org/security/2010/dsa-2131
- http://www.kb.cert.org/vuls/id/682457
- http://www.securityfocus.com/archive/1/515172/100/0/threaded
- http://www.securityfocus.com/bid/45308
- http://www.securitytracker.com/id?1024858
- http://www.ubuntu.com/usn/USN-1032-1
- http://bugs.exim.org/show_bug.cgi?id=787
- http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b
- http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html
- http://www.osvdb.org/69685
- https://bugzilla.redhat.com/show_bug.cgi?id=661756
- http://www.redhat.com/support/errata/RHSA-2010-0970.html